Updates vitest config to deal with flaky tests (#16)

.github/workflows/test.yaml

@@ -1,15 +1,24 @@
 name: Test Changes
 
-on: [push, pull_request]
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+# cancel old edit events being processed
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
       - name: Clone Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup Node version
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: 20.x
       - name: Install dependencies

CONTRIBUTING.md

@@ -44,12 +44,12 @@ npx eslint src tests
 unit tests via [Vitest](https://vitest.dev/):
 
 ```sh {"id":"01HF7GMQ6NTPMHCVN4BY0W782F","name":"test:unit"}
-npx vitest --config ./vitest.config.ts
+npx vitest --config ./vitest.config.ts --retry=3
 ```
 
 Update snapshots used in tests if necesary:
 
-```sh {"name":"test:unit:snapshots"}
+```sh {"id":"01HPEYC6NE0WP6X2KTGQAHZVSN","name":"test:unit:snapshots"}
 npx vitest --config ./vitest.config.ts -u
 ```